Malignant transformation of extragonadal endometriosis: a case report.
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Abstract
Though malignant transformation of endometriosis has been documented, malignancy arising from extragonadal endometriosis is rare. We present the case of a 39-year-old woman with abdominal pain and fullness after menstruation. Evaluation revealed a cul-de-sac mass and CA-125 level of 1048 U/ml. A hysterectomy, bilateral salpingo-oophorectomy, and omentectomy were performed. Endometrioid adenocarcinoma with a clearly defined transition zone from endometriosis to adenocarcinoma was noted histologically. Adjuvant chemotherapy and GnRH agonist treatment was administered. Serum CA-125 level was 1.51 U/ml 19 months after completion of treatment. Patients with endometriosis and elevated CA-125 levels should be managed aggressively and CA-125 levels monitored until they have normalized.
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Cited by (5)
- Mass-like extragonadal endometriosis associated malignant transformation in the pelvis: A rare case report 2022
- Primary endometrioid carcinoma of the uterosacral ligament arising from deep infiltrating endometriosis after 6 years bilateral salpingo-oophorectomy due to atypical proliferative endometrioid tumor of the ovary: a rare case report 2020
- Abnormal gut microbiota-induced hypoestrogenemia as a possible risk factor for malignancy in endometrioid heterotopia 2020
- Primary endometrioid carcinoma of the uterosacral ligament arising from deep infiltrating endometriosis 6 years after bilateral salpingo-oophorectomy due to atypical proliferative endometrioid tumor of the ovary: a rare case report 2020
- Relationship between endometriosis and cancer from current perspective 2011
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- europepmc
- last seen: 2026-06-13T06:22:48.782012+00:00
- openalex
- last seen: 2026-06-10T17:14:06.276822+00:00
- pubmed
- last seen: 2026-05-13T22:13:53.633898+00:00
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